20225061 has 6 divisors (see below), whose sum is σ = 29213990. Its totient is φ = 13483368.

The previous prime is 20225047. The next prime is 20225069. The reversal of 20225061 is 16052202.

It can be written as a sum of positive squares in only one way, i.e., 11189025 + 9036036 = 3345^2 + 3006^2 .

It is not a de Polignac number, because 20225061 - 2⁹ = 20224549 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20225069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1123606 + ... + 1123623.

Almost surely, 2^20225061 is an apocalyptic number.

It is an amenable number.

20225061 is a deficient number, since it is larger than the sum of its proper divisors (8988929).

20225061 is a wasteful number, since it uses less digits than its factorization.

20225061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2247235 (or 2247232 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 20225061 is about 4497.2281463141. The cubic root of 20225061 is about 272.4561487106.

Adding to 20225061 its reverse (16052202), we get a palindrome (36277263).

The spelling of 20225061 in words is "twenty million, two hundred twenty-five thousand, sixty-one".